Ignition coil



FIG. 1 is a perspective view of an ignition coil showing a first embodiment of our new design;

FIG. 2 is an elevational left end view thereof;

FIG. 3 is an elevational right end view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an elevational rear view thereof;

FIG. 6 is a perspective view of an ignition coil showing a second embodiment of our new design;

FIG. 7 is an elevational right end view thereof;

FIG. 8 is an elevational left end view thereof;

FIG. 9 is an elevational rear view thereof;

FIG. 10 is a bottom plan view thereof. 

The ornamental design for an ignition coil, substantially as shown and described. 